You know, I'd like believe you. :)
I'm right in the middle of an overnight render, or I'd double check.
What I did was:
#declare EuroSun = object { glow { location.... } sphere {0,0}}
then:
object { EuroSun }
finally I redundantly added:
light_source {(same location)....looks_like {EuroSun}}
and I swear it rendered a glow.
Now you're making me nervous... :)
Grim
